A Comparison between CODYRUN and TRNSYS, simulation models for thermal buildings behaviour

TL;DR

This paper compares the performance of CODYRUN and TRNSYS, two thermal simulation software, in modeling building thermal behavior under different conditions to evaluate their accuracy and applicability.

Contribution

It provides a comparative analysis of CODYRUN and TRNSYS in modeling single-zone and multi-zone buildings, highlighting their differences and sensitivities.

Findings

CODYRUN and TRNSYS show different sensitivities to meteorological data.

Model errors vary between the two software depending on building complexity.

The study offers insights into the suitability of each software for specific building simulations.

Abstract

Simulation codes of thermal behaviour could significantly improve housing construction design. Among the existing software, CODYRUN and TRNSYS are calculations codes of different conceptions. CODYRUN is exclusively dedicated to housing thermal behaviour, whereas TRNSYS is more generally used on any thermal system. The purpose of this article is to compare these two instruments in two different conditions . We will first modelize a mono-zone test cell, and analyse the results by means of signal treatment methods. Then, we will modelize a real case of multi-zone housing, representative of housing in wet tropical climates. We could so evaluate influences of meteorological and building description data on model errors.